Cottonwood, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cottonwood, a city in Idaho County, Idaho.
Overnight
47°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 47. Northwest wind around 3 mph.
7-day forecast for Cottonwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Smoke | 3 mph NW | 0% |
| Tuesday | 78°F | Areas Of Smoke | 2 to 8 mph N | 0% |
| Tuesday Night | 54°F | Areas Of Smoke | 3 to 8 mph NW | 0% |
| Wednesday | 85°F | Areas Of Smoke | 6 mph WSW | 0% |
| Wednesday Night | 58°F | Clear | 6 mph W | 0% |
| Thursday | 92°F | Sunny | 3 to 8 mph SW | 0% |
| Thursday Night | 63°F | Clear | 3 to 8 mph W | 0% |
| Friday | 91°F | Sunny | 5 to 12 mph W | 0% |
| Friday Night | 61°F | Clear | 5 to 12 mph W | 0% |
| Saturday | 87°F | Sunny | 5 to 10 mph W | 0% |
| Saturday Night | 60°F | Mostly Clear | 3 to 10 mph W | 0% |
| Sunday | 83°F | Sunny | 3 to 10 mph NNW | 0% |
| Sunday Night | 57°F | Mostly Clear | 3 to 10 mph WNW | 0% |
| Monday | 81°F | Sunny | 3 to 10 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Cottonwood (46.051, -116.350). Updated through the day.
Growing snapshot for Cottonwood
Last spring frost
May 6
First fall frost
Oct 13
Growing season
156 days
Hardiness zone
6a
More local growing data for Cottonwood: nearby ZIP 83526 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cottonwood 2 Wsw, Id (7.9 mi from Cottonwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.